[GitHub] zeppelin issue #2822: ZEPPELIN-3242. Listener threw an exception java.lang.N...

[Tagar]

Github user Tagar commented on the issue:

    https://github.com/apache/zeppelin/pull/2822
  
    Manually tested. Works as expected.
    
    This PR fixes:
    - Spark job progress bar
    - ability to cancel as spark job from paragraph 
    - Spark Driver web UI link.
    
    Thanks a lot @zjffdu 


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